Geotextiles are permeable fabrics which that are laid on soil with the purpose of separating, filtering, reinforcing, protecting, or draining the subgrade.
Typically made from polypropylene or polyester, geotextile fabrics come in three basic forms, each providing unique characteristics:
Geotextile composites have been introduced and products such as, geogrids and meshes have been developed, these materials are referred to as geosynthetics.
The most common use of Woven Geotextiles is to separate and stabilise soil in the construction of roads. The woven geotextile’s separation action prevents the mixing of dissimilar soils allowing each soil layer in the road structure to function as intended. The high tensile strength and low elongation properties of woven geotextiles impart stability, extending the roadway’s life by reducing rutting.
Woven geotextiles are also used in filtering and reinforcement applications.
Nonwoven geotextiles have a wide range of applications in civil environmental engineering and construction projects. Their uses include:
The material is heat bonded to ensure a robust seam.